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Diffstat (limited to 'arch/mips/sgi-ip27/ip27-smp.c')
-rw-r--r--arch/mips/sgi-ip27/ip27-smp.c109
1 files changed, 64 insertions, 45 deletions
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index a70656d42191..f15fc93d6b35 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -140,30 +140,51 @@ static __init void intr_clear_all(nasid_t nasid)
REMOTE_HUB_CLR_INTR(nasid, i);
}
-void __init plat_smp_setup(void)
+static void ip27_send_ipi_single(int destid, unsigned int action)
{
- cnodeid_t cnode;
+ int irq;
- for_each_online_node(cnode) {
- if (cnode == 0)
- continue;
- intr_clear_all(COMPACT_TO_NASID_NODEID(cnode));
+ switch (action) {
+ case SMP_RESCHEDULE_YOURSELF:
+ irq = CPU_RESCHED_A_IRQ;
+ break;
+ case SMP_CALL_FUNCTION:
+ irq = CPU_CALL_A_IRQ;
+ break;
+ default:
+ panic("sendintr");
}
- replicate_kernel_text();
+ irq += cputoslice(destid);
/*
- * Assumption to be fixed: we're always booted on logical / physical
- * processor 0. While we're always running on logical processor 0
- * this still means this is physical processor zero; it might for
- * example be disabled in the firwware.
+ * Convert the compact hub number to the NASID to get the correct
+ * part of the address space. Then set the interrupt bit associated
+ * with the CPU we want to send the interrupt to.
*/
- alloc_cpupda(0, 0);
+ REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq);
}
-void __init plat_prepare_cpus(unsigned int max_cpus)
+static void ip27_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+ unsigned int i;
+
+ for_each_cpu_mask(i, mask)
+ ip27_send_ipi_single(i, action);
+}
+
+static void __cpuinit ip27_init_secondary(void)
+{
+ per_cpu_init();
+ local_irq_enable();
+}
+
+static void __cpuinit ip27_smp_finish(void)
+{
+}
+
+static void __init ip27_cpus_done(void)
{
- /* We already did everything necessary earlier */
}
/*
@@ -171,7 +192,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
* set sp to the kernel stack of the newly created idle process, gp to the proc
* struct so that current_thread_info() will work.
*/
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+static void __cpuinit ip27_boot_secondary(int cpu, struct task_struct *idle)
{
unsigned long gp = (unsigned long)task_thread_info(idle);
unsigned long sp = __KSTK_TOS(idle);
@@ -181,41 +202,39 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
0, (void *) sp, (void *) gp);
}
-void __cpuinit prom_init_secondary(void)
+static void __init ip27_smp_setup(void)
{
- per_cpu_init();
- local_irq_enable();
-}
-
-void __init prom_cpus_done(void)
-{
-}
-
-void __cpuinit prom_smp_finish(void)
-{
-}
-
-void core_send_ipi(int destid, unsigned int action)
-{
- int irq;
+ cnodeid_t cnode;
- switch (action) {
- case SMP_RESCHEDULE_YOURSELF:
- irq = CPU_RESCHED_A_IRQ;
- break;
- case SMP_CALL_FUNCTION:
- irq = CPU_CALL_A_IRQ;
- break;
- default:
- panic("sendintr");
+ for_each_online_node(cnode) {
+ if (cnode == 0)
+ continue;
+ intr_clear_all(COMPACT_TO_NASID_NODEID(cnode));
}
- irq += cputoslice(destid);
+ replicate_kernel_text();
/*
- * Convert the compact hub number to the NASID to get the correct
- * part of the address space. Then set the interrupt bit associated
- * with the CPU we want to send the interrupt to.
+ * Assumption to be fixed: we're always booted on logical / physical
+ * processor 0. While we're always running on logical processor 0
+ * this still means this is physical processor zero; it might for
+ * example be disabled in the firwware.
*/
- REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq);
+ alloc_cpupda(0, 0);
}
+
+static void __init ip27_prepare_cpus(unsigned int max_cpus)
+{
+ /* We already did everything necessary earlier */
+}
+
+struct plat_smp_ops ip27_smp_ops = {
+ .send_ipi_single = ip27_send_ipi_single,
+ .send_ipi_mask = ip27_send_ipi_mask,
+ .init_secondary = ip27_init_secondary,
+ .smp_finish = ip27_smp_finish,
+ .cpus_done = ip27_cpus_done,
+ .boot_secondary = ip27_boot_secondary,
+ .smp_setup = ip27_smp_setup,
+ .prepare_cpus = ip27_prepare_cpus,
+};